Publicist Don Halcombe continues his run today on "Millionaire." Photo:

Z100’s Bethany Watson (“Elvis Duran and the Morning Show”) will appear on the new, half-hour Web version of “One Life to Live,” which premieres April 29 on Hulu, Hulu Plus and iTunes.

In the episode, scheduled to air May 2 Watson — who joined Z100 just last August — will play a TV news anchor who grills US Senator Dorian Lord (Robin Strasser) on the air — asking Dorian talk about a scandalous comment she made.

The online version of “All My Children” also premieres April 29. Both soaps are produced by Prospect Park’s The Online Network.

It’s a Don deal: Veteran industry publicist Don Halcombe continues his run today on “Who Wants to Be a Millionaire” (12:30 p.m./Ch. 7). Halcombe — who’s based in Chicago and is currently repping “The Steve Harvey Show,” which tapes there — only had time to answer three questions yesterday (Monday), but continues on the show today opposite his boyhood idol, show host Meredith Vieira.

(“Millionaire” was preempted yesterday in Chicago, so Don’s appearances will air back-to-back today in The Windy City, 4-5 p.m. on WGN.)

Halcombe, who previously worked for Harpo, says he’ll put a good portion of his winnings toward helping his parents retire (they live in Virginia).

The show officially opens April 27 and runs through May 11 with performances Tuesdays at 7 p.m. and Wednesday through Saturday at 8 p.m. Vieira called it “a theatrical feast for women of all ages and the men who love them!”

HLN’s Robin Meade and recording star Jordin Sparks will join Dress for Success Worldwide and 16 “Success Ambassadors” at the organization’s Annual Something To Share Gala this Thursday at The Grand Hyatt Hotel (Grand Central). It’s for the gala’s signature “Toast to Our Mothers” dedication, presented by lia sophia to recognize the time and commitment mothers have devoted to raising successful women. Sparks and Meade will toast their own moms, Jodi Sparks and Sharon Meade.

The annual fundraiser benefits career development services to help women re-enter the workforce (among other pursuits).

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Last, but not least:

* Sunday night’s “ACM Awards” snared 15.4 million viewers on CBS — its best viewership in 15 years . . . Sam Champion’s syndicated series, “Sea Rescue” — which is aimed at 13-to-16 year-olds — won a Parent’s Choice “Recommended” Award for, among other things, its educational content . . . Susan Froetschel’s new novel, “Fear of Beauty,” has attracted attention from the networks (it deals with US-Afghanistan relations) . . . Kyle MacLachlan was in DC on Sunday to help announce the SU2C-St. Baldricks Pediatric Dream Team, part of the Stand Up To Cancer initiative introduced at the American Association for Cancer Research Annual Meeting . . . I’m sick of hearing/reading about it, but I guess I’m duty-bound to tell you that the sixth season of “Mad Men” premiered to 3.4 million viewers Sunday night (9-11 p.m.), up nearly 30 percent from its fifth-season average (2.6 million viewers). Whoop-de-doo.